Welcome to 'Shatner's World'

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This undated file photo shows actors in the TV series "Star Trek," from left, Leonard Nimoy as Commander Spock, William Shatner as Captain Kirk, DeForest Kelley as Doctor McCoy and James Doohan as Commander Scott.

This undated file photo shows actors in the TV series "Star Trek," from left, Leonard Nimoy as Commander Spock, William Shatner as Captain Kirk, DeForest Kelley as Doctor McCoy and James Doohan as Commander Scott.